CN2496738Y - Combined valve type cycloidal hydraulic steering gear - Google Patents
Combined valve type cycloidal hydraulic steering gear Download PDFInfo
- Publication number
- CN2496738Y CN2496738Y CN 01243862 CN01243862U CN2496738Y CN 2496738 Y CN2496738 Y CN 2496738Y CN 01243862 CN01243862 CN 01243862 CN 01243862 U CN01243862 U CN 01243862U CN 2496738 Y CN2496738 Y CN 2496738Y
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- Prior art keywords
- valve
- valve body
- oil
- way
- oil port
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- Expired - Fee Related
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Abstract
The utility model provides a cycloid full-hydraulic redirector with combination valve type, and the redirector consists of a valve core, a valve housing, a valve body and a gauging device. A scavenging port, a left hydraulic fluid port, a right hydraulic fluid port, and an oil-in are arranged on the valve body. A safety valve and a double-action overload valve are respectively arranged on the flange coupling face of the valve body. A double-action slippage valve is arranged at the big end face of the valve body, and an inlet inverted valve is arranged in the oil-in of the valve body, wherein the safety valve is communicated with ring grooves of the oil-in by a declining hole; the double-action overload valve is communicated with the left ring groove and the right ring groove respectively; the double-action slippage valve is communicated with the scavenging port.
Description
Technical field:
The utility model relates to a kind of Hydraulic Elements that are used for the vehicle hydraulic power steering system, more particularly relates to a kind of cycloid all-hydraulic steering gear.
Background technology:
In the prior art,, use combination valve block to link to each other usually with cycloid formula all-hydraulic steering gear for guaranteeing steering swivel system safety.Combination valve block generally has safety valve, two-way overload valve, two-way Fill valve, inlet one-way valve.Safety valve is made up of screw plug, spring, safety valve spool and safety valve valve seat; The two-way overload valve is made up of bypass control valve seat, steel ball, steel ball seat, spring and screw plug; Two-way Fill valve is made up of pin and steel ball.They provide respectively system pressure safety guard-safeguard, turn to the overload protection of oil cylinder and prevent to turn to oil cylinder hole, high pressure oil to occur and flow backwards and bearing circle is impacted.Combination valve block and cycloid formula all-hydraulic steering gear are two elements that turn in the loop, after two connections, quality problems such as faying face leakage of oil often occur; Combination valve block and cycloid formula all-hydraulic steering gear be processing and fabricating respectively, causes the waste of great amount of manpower and material resources, brings many combination valve blocks and the unmatched problem of cycloid formula all-hydraulic steering gear simultaneously, brings more trouble to system trouble analysis and maintenance protection; In addition, combination valve block is with after cycloid formula all-hydraulic steering gear connects, and increase on the hydraulic fluid port plane that enters deflector, is unfavorable for the mounting arrangements of steering component and other elements.
The utility model content:
The purpose of this utility model is to overcome above-mentioned weak point, and a kind of combination valve type cycloid all-hydraulic steering gear is provided.
The purpose of this utility model can realize by following measure:
This deflector is made of spool, valve pocket, valve body and gauging device, and valve body is provided with return opening, left oil port, right oil port, oil inlet, on the flange conjunction plane of valve body safety valve is installed, and described safety valve communicates with the annular groove of oil inlet by inclined hole.
This deflector is made of spool, valve pocket, valve body and gauging device, and valve body is provided with return opening, left oil port, right oil port, oil inlet, at the large end face position of valve body two-way Fill valve is installed, and described two-way Fill valve communicates with return opening.
This deflector is made of valve, valve pocket, valve body and gauging device, and valve body is provided with return opening, left oil port, right oil port, oil inlet, it is characterized in that in the valve body oil inlet inlet one-way valve being installed.
This deflector is made of spool, valve pocket, valve body and gauging device, valve body is provided with return opening, left oil port, right oil port, oil inlet, two two-way overload valves are installed on the flange conjunction plane of valve body and two-way Fill valve are installed at the large end face position of valve body, described two-way overload valve communicates with left oil port, right oil port respectively, and described two-way Fill valve communicates with return opening.
The utility model processes the endoporus that the safety valve valve seat is installed on the flange conjunction plane of valve body; this endoporus communicates with the annular groove of oil inlet by inclined hole; when input pressure surpasses safety valve setting pressure; the instantaneous safety valve spool of pushing open of high pressure oil in the oil inlet; high pressure oil is discharged in the return opening, realizes providing the safety guard-safeguard of system pressure.On the flange conjunction plane of valve body, process two endoporus that the two-way overload valve base is installed; this endoporus communicates with left and right annular groove respectively; when the high pressure oil oil pressure of left and right oil cylinder surpasses the setting pressure of two-way overload valve; high pressure oil is pushed the steel ball of two-way overload valve open; high pressure oil is discharged in the return opening, realizes providing the overload protection that turns to oil cylinder.Process two endoporus that two-way Fill valve is installed at the large end face position of valve body, this endoporus communicates with return opening, when turning to two chambeies of oil cylinder to be subjected to external impact to produce instantaneous negative pressure, the high pressure oil of return opening is pushed the steel ball of two-way Fill valve open, enter a left side or right oil port, in time high pressure oil is added to the left and right oil pocket that turns to oil cylinder, prevent to turn to oil cylinder the hole to occur.Process the endoporus that inlet one-way valve is installed in the valve body oil inlet, inlet one-way valve is opened during the deflector oil-feed, if high pressure oil flows backwards, inlet one-way valve ends, and prevents to cause high pressure oil to flow backwards owing to be subjected to external impact when normal direction of rotation.The utility model can be provided with safety valve, two-way Fill valve, inlet one-way valve or two-way overload valve and two-way Fill valve separately according to different needs, also can be part setting or all settings, removed the combination valve block of prior art, thereby solved because faying face leakage of oil and the mismatch problem that two agllutinations close, save great amount of manpower and material resources simultaneously, simple in structure in addition and convenient installation and maintenance.
Description of drawings:
Fig. 1 is the cross-sectional schematic of the utility model embodiment;
Fig. 2 is the left view of the utility model embodiment;
Fig. 3 is the right elevation of the utility model embodiment;
Fig. 4 is the birds-eye view of the utility model embodiment;
Fig. 5 is the section-drawing of the utility model embodiment safety valve;
Fig. 6 is the section-drawing of the utility model embodiment two-way overload valve;
Fig. 7 is the section-drawing of the two-way Fill valve of the utility model embodiment;
Fig. 8 is the section-drawing of the utility model embodiment inlet one-way valve.
The specific embodiment:
With reference to the accompanying drawings a kind of combination valve type cycloid all-hydraulic steering gear described in the utility model is described further: this deflector is by spool 20, valve pocket 12, valve body 13 and gauging device 19 constitute, valve body 13 is provided with return opening 14, left oil port 15, right oil port 16, oil inlet 17, on the flange conjunction plane of valve body 13, process endoporus that safety valve valve seat 4 is installed and two endoporus that bypass control valve seat 5 is installed, safety valve and two two-way overload valves are installed respectively, process two endoporus that two-way Fill valve is installed at the large end face position of valve body 13, in valve body 13 oil inlets 17, process the endoporus that inlet one-way valve is installed.Described safety valve communicates with the annular groove 18 of oil inlet 17 by inclined hole; two two-way overload valves communicate with left oil port 15, right oil port 16 respectively; two-way Fill valve communicates with return opening 14; safety valve is made up of screw plug 1, spring 2, safety valve spool 3 and safety valve valve seat 4; when input pressure surpasses safety valve setting pressure; the instantaneous safety valve spool 3 of pushing open of the high pressure oil that oil inlet is 17 li is discharged to high pressure oil in the return opening 14, realizes providing the safety guard-safeguard of system pressure.The two-way overload valve is made up of bypass control valve seat 5, steel ball 6, steel ball seat 7, spring 8 and screw plug 9, when left-handed turning to, when steering pressure surpasses two-way overload valve setting pressure, instantaneous steel ball 6 and the steel ball seat 7 pushed open of high pressure oil in the left oil port 15, high pressure oil is discharged in the return opening 14, realizes providing the overload protection that turns to oil cylinder; The bypass control structure of right steering is identical with the bypass control structure of left steering; the endoporus of bypass control valve seat 5 communicates with right oil port 16; when steering pressure left surpasses the bypass control setting pressure; instantaneous steel ball 6 and the steel ball seat 7 pushed open of high pressure oil in the right oil port 16; high pressure oil is discharged in the return opening 14, realizes providing the overload protection that turns to oil cylinder.Fill valve is made up of pin 10 and steel ball 11, when two chambeies that turn to oil cylinder are subjected to external impact to produce instantaneous negative pressure, the high pressure oil of return opening 14 is pushed the steel ball 11 of Fill valve open, enter left oil port 15 or right oil port 16, in time high pressure oil is added to the left and right oil pocket that turns to oil cylinder, prevent to turn to oil cylinder the hole to occur.In valve body 13 oil inlets 17, process the endoporus that inlet one-way valve is installed, one-way valve opens during the deflector oil-feed, if high pressure oil flows backwards, check valve ends, and prevents to cause high pressure oil to flow backwards owing to be subjected to external impact when normal direction of rotation.
Claims (4)
1, a kind of combination valve type cycloid all-hydraulic steering gear, constitute by valve (20), valve pocket (12), valve body (13) and gauging device (19), valve body (13) is provided with return opening (14), left oil port (15), right oil port (16), oil inlet (17), it is characterized in that on the flange conjunction plane of valve body (13) safety valve being installed, described safety valve communicates with the annular groove 18 of oil inlet 17 by inclined hole.
2, a kind of combination valve type cycloid all-hydraulic steering gear, constitute by valve (20), valve pocket (12), valve body (13) and gauging device (19), valve body (13) is provided with return opening (14), left oil port (15), right oil port (16), oil inlet (17), it is characterized in that at the large end face position of valve body (13) two-way Fill valve being installed, described two-way Fill valve communicates with return opening 14.
3, a kind of combination valve type cycloid all-hydraulic steering gear, constitute by valve (20), valve pocket (12), valve body (13) and gauging device (19), valve body (13) is provided with return opening (14), left oil port (15), right oil port (16), oil inlet (17), it is characterized in that installing in valve body (13) oil inlet (17) inlet one-way valve.
4, a kind of combination valve type cycloid all-hydraulic steering gear, constitute by valve (20), valve pocket (12), valve body (13) and gauging device (19), valve body (13) is provided with return opening (14), left oil port (15), right oil port (16), oil inlet (17), it is characterized in that on the flange conjunction plane of valve body (13), installing two two-way overload valves and two-way Fill valve is installed at the large end face position of valve body (13), described two-way overload valve communicates with left oil port 15, right oil port 16 respectively, and described two-way Fill valve communicates with return opening 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01243862 CN2496738Y (en) | 2001-07-10 | 2001-07-10 | Combined valve type cycloidal hydraulic steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01243862 CN2496738Y (en) | 2001-07-10 | 2001-07-10 | Combined valve type cycloidal hydraulic steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2496738Y true CN2496738Y (en) | 2002-06-26 |
Family
ID=33655395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01243862 Expired - Fee Related CN2496738Y (en) | 2001-07-10 | 2001-07-10 | Combined valve type cycloidal hydraulic steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2496738Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368247C (en) * | 2006-03-27 | 2008-02-13 | 镇江液压件厂有限责任公司 | Geluote energy saving high efficiency hydraulic deflector |
| CN101885349A (en) * | 2010-07-12 | 2010-11-17 | 尹凤金 | Integral multifunctional all-hydraulic steering gear |
| CN102092418A (en) * | 2010-12-21 | 2011-06-15 | 尹凤金 | Cross block connection integral type multifunctional fully-hydraulic steering device |
| CN102145712A (en) * | 2011-01-28 | 2011-08-10 | 尹凤金 | Integrated multifunctional full-hydraulic steering gear adopting cross piece connection mode |
| CN102285373A (en) * | 2010-06-18 | 2011-12-21 | 江苏罡阳动力转向器厂 | Power steering gear with safety valve structure |
| CN105370653A (en) * | 2015-12-07 | 2016-03-02 | 苏州广硕精密电子有限公司 | Conversion valve of vibratory road roller |
| CN109131549A (en) * | 2018-09-05 | 2019-01-04 | 芜湖中意液压科技股份有限责任公司 | A kind of load sensing type hydraulic steering gear |
| CN109131550A (en) * | 2018-09-05 | 2019-01-04 | 芜湖中意液压科技股份有限责任公司 | A kind of adjustable Flow amplification hydraulic steering gear of discharge capacity |
-
2001
- 2001-07-10 CN CN 01243862 patent/CN2496738Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368247C (en) * | 2006-03-27 | 2008-02-13 | 镇江液压件厂有限责任公司 | Geluote energy saving high efficiency hydraulic deflector |
| CN102285373A (en) * | 2010-06-18 | 2011-12-21 | 江苏罡阳动力转向器厂 | Power steering gear with safety valve structure |
| CN101885349A (en) * | 2010-07-12 | 2010-11-17 | 尹凤金 | Integral multifunctional all-hydraulic steering gear |
| CN102092418A (en) * | 2010-12-21 | 2011-06-15 | 尹凤金 | Cross block connection integral type multifunctional fully-hydraulic steering device |
| CN102145712A (en) * | 2011-01-28 | 2011-08-10 | 尹凤金 | Integrated multifunctional full-hydraulic steering gear adopting cross piece connection mode |
| CN105370653A (en) * | 2015-12-07 | 2016-03-02 | 苏州广硕精密电子有限公司 | Conversion valve of vibratory road roller |
| CN109131549A (en) * | 2018-09-05 | 2019-01-04 | 芜湖中意液压科技股份有限责任公司 | A kind of load sensing type hydraulic steering gear |
| CN109131550A (en) * | 2018-09-05 | 2019-01-04 | 芜湖中意液压科技股份有限责任公司 | A kind of adjustable Flow amplification hydraulic steering gear of discharge capacity |
| CN109131549B (en) * | 2018-09-05 | 2021-03-02 | 芜湖中意液压科技股份有限责任公司 | Load sensing type hydraulic steering gear |
| CN109131550B (en) * | 2018-09-05 | 2021-05-07 | 芜湖中意液压科技股份有限责任公司 | Displacement-adjustable flow amplification hydraulic steering gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |